Manhole covers are not heavy as fuck. They’re meant to be able to lift out. I’ve lifted far larger ones than this no problem.
This manhole cover is at most 30x30cm judging by OP’s foot, so weights at most a few kilos.
This is a small cover, probably covering a drain, not a hole to the centre of the earth. I have a few around the house. Cable tie, piece of string, lift it out no problem. You lift and slide it aside, it’s not going to fall in unless you’re a complete moron or drunk. If it does fall in, you pull it out, because it doesn’t weigh 100 kg.
If you’re worried that this would take your finger off, you’re the kind of person who should hire an electrician to change a light bulb.
easy peasy. just lift the 100 kilo chunk of iron with some tongs. /s
If that were an actual manhole you’d be right, but its obviously not.